ICD-10-CM category
I25 Chronic ischaemic heart disease
I25 is a category, not a billable code. Report one of the 56 complete codes below.
I25.1…
6 codes
- I25.10Atherosclerotic heart disease of native coronary artery without angina pectoris
- I25.110Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
- I25.111Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
- I25.112Atherosclerotic heart disease of native coronary artery with refractory angina pectoris
- I25.118Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
- I25.119Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
I25.2…
1 code
I25.3…
1 code
I25.4…
2 codes
I25.5…
1 code
I25.6…
1 code
I25.7…
35 codes
- I25.700Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris
- I25.701Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris with documented spasm
- I25.702Atherosclerosis of coronary artery bypass graft(s), unspecified, with refractory angina pectoris
- I25.708Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
- I25.709Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris
- I25.710Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris
- I25.711Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.712Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory angina pectoris
- I25.718Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
- I25.719Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris
- I25.720Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris
- I25.721Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.722Atherosclerosis of autologous artery coronary artery bypass graft(s) with refractory angina pectoris
- I25.728Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
- I25.729Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris
- I25.730Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris
- I25.731Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.732Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with refractory angina pectoris
- I25.738Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
- I25.739Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris
- I25.750Atherosclerosis of native coronary artery of transplanted heart with unstable angina
- I25.751Atherosclerosis of native coronary artery of transplanted heart with angina pectoris with documented spasm
- I25.752Atherosclerosis of native coronary artery of transplanted heart with refractory angina pectoris
- I25.758Atherosclerosis of native coronary artery of transplanted heart with other forms of angina pectoris
- I25.759Atherosclerosis of native coronary artery of transplanted heart with unspecified angina pectoris
- I25.760Atherosclerosis of bypass graft of coronary artery of transplanted heart with unstable angina
- I25.761Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris with documented spasm
- I25.762Atherosclerosis of bypass graft of coronary artery of transplanted heart with refractory angina pectoris
- I25.768Atherosclerosis of bypass graft of coronary artery of transplanted heart with other forms of angina pectoris
- I25.769Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris
- I25.790Atherosclerosis of other coronary artery bypass graft(s) with unstable angina pectoris
- I25.791Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.792Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris
- I25.798Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris
- I25.799Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris
I25.8…
8 codes
- I25.810Atherosclerosis of coronary artery bypass graft(s) without angina pectoris
- I25.811Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
- I25.812Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris
- I25.82Chronic total occlusion of coronary artery
- I25.83Coronary atherosclerosis due to lipid rich plaque
- I25.84Coronary atherosclerosis due to calcified coronary lesion
- I25.85Chronic coronary microvascular dysfunction
- I25.89Other forms of chronic ischemic heart disease
I25.9…
1 code
Outside the US? I25 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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